docs: def createRole(self, name, description):
          """
          creates a role for a portal/agol site.
          Inputs:
             names - name of the role
             description - brief text string stating the nature of this
              role.
          Ouput:
             dictionary
          """
          params = {
              "name" : name,
              "description" : description,
              "f" : "json"
          }
          url = self.root + "/createRole"
          return self._post(url=url,
                               param_dict=params,
                               securityHandler=self._securityHandler,
                               proxy_url=self._proxy_url,
                               proxy_port=self._proxy_port)